Color black
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5996-01-455-2198
NSN 6240-00-832-3909
NSN 5905-01-546-7610
NSN 5835-01-290-4397
NSN 6685-00-060-2860
NSN 6145-01-372-5709
NSN 6135-01-421-1052
NSN 6105-01-263-0727
NSN 5975-01-634-0678
NSN 5915-00-583-4686
NSN 6685-00-470-8651
NSN 6610-00-686-5817